package com.changgou.goods.dao;

import com.changgou.goods.pojo.Brand;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import tk.mybatis.mapper.common.Mapper;

import java.util.List;
import java.util.Map;

/**
 * @Author: HuangFu
 * @Date: 2020/1/14 21:13
 * @Description: 品牌持久层Mapper
 */
public interface BrandMapper extends Mapper<Brand>{

    /*@Select("SELECT name,image FROM tb_brand WHERE id IN (SELECT brand_id FROM tb_category_brand WHERE category_id IN (SELECT id FROM tb_category WHERE NAME=#{name}) )order by seq")
    List<Map> findListByCategoryName1(@Param("name") String name);*/

    /**
     * 根据分类名称查询品牌
     * @param name
     * @return
     */
    @Select("select b.name,b.image from tb_brand b,tb_category_brand cb,tb_category c where b.id = cb.brand_id and cb.category_id= c.id and c.name=#{name} order by c.seq ")
    List<Map> selectByCategoryName(@Param("name") String name);

}
